Internalized some functions from lsb-functions, script-functions
in simplified versions.

Signed-off-by: Michael Prokop <mika@grml.org>

Signed-off-by: Michael Prokop <mika@grml.org>

Using the --vmfile option sets up a virtual machine instead of
deploying Debian to a block device or directory.

The --vmsize option configures the size of the virtual disk file
that's being deployed.

Thanks to Thorsten Glaser for help with installing Grub accordingly.

Signed-off-by: Michael Prokop <mika@grml.org>

If os-prober isn't installed grub doesn't detect the non-Debian
operating systems. os-prober does all the necessary magic, so
let's install it by default.

Signed-off-by: Michael Prokop <mika@grml.org>

Signed-off-by: Christian Hofstaedtler <ch@grml.org>
Acked-by: Michael Prokop <mika@grml.org>

Signed-off-by: Christian Hofstaedtler <ch@grml.org>
Acked-by: Michael Prokop <mika@grml.org>

Signed-off-by: Christian Hofstaedtler <ch@grml.org>
Acked-by: Michael Prokop <mika@grml.org>

Signed-off-by: Christian Hofstaedtler <ch@grml.org>
Acked-by: Michael Prokop <mika@grml.org>

Automatically reboot after 10 seconds of inactivity after succesfully finishing automatic installation.

Thanks for the suggestion, Christian.

Use /etc/apt/sources.list.d/grml.list for grml-repos, retrieve grml-debian-keyring package if possible

Closes: issue867

chroot-script runs in target, which might very well use dash, which
doesn't have "read -s". Patch based on mira's recommendations.

see http://bts.grml.org/grml/issue806